Heffter Research Institute
Funding Overview
From IRS Form 990 filings · 2020–2025
Total received
$654K
Foundation funders
8
Grants recorded
11
Years covered
2020–2025
Who funds Heffter Research Institute?
Heffter Research Institute is funded by 8 grantmakers, led by Turnbull Family Foundation Inc ($232K), National Philanthropic Trust ($225K), The San Diego Foundation ($100K). In total, IRS Form 990 filings record $654K in grants to Heffter Research Institute between 2020–2025.
| Funder | Total given | Grants | Years |
|---|---|---|---|
| Turnbull Family Foundation Inc | $231,626 | 2 | 2021–2022 |
| National Philanthropic Trust | $225,000 | 2 | 2022–2023 |
| The San Diego Foundation | $100,000 | 2 | 2023–2025 |
| The Saisei Foundation | $75,000 | 1 | 2023 |
| Vanguard Charitable Endowment Program | $10,000 | 1 | 2024 |
| The San Francisco Foundation | $10,000 | 1 | 2023 |
| Solstice Foundation | $1,000 | 1 | 2024 |
| Hitchcock Margaret M Fdn | $1,000 | 1 | 2020 |
Funding over time
Grant dollars and counts received per year
From 2020 to 2025, annual grant giving ranged from $1K (2020) to $285K (2023). In 2025 it made 1 grant totaling $50K.
What grants has Heffter Research Institute received?
Individual grants from IRS Form 990 filings, newest first
| Year | Funder | Purpose | Amount |
|---|---|---|---|
| 2025 | The San Diego Foundation | FOR GENERAL SUPPORT | $50,000 |
| 2024 | Vanguard Charitable Endowment Program | FOR RECIPIENT'S EXEMPT PURPOSE | $10,000 |
| 2024 | Solstice Foundation | NEUROSCIENCE RESEARCH | $1,000 |
| 2023 | National Philanthropic Trust | EDUCATION | $150,000 |
| 2023 | The Saisei Foundation | ANNUAL FUNDRAISING | $75,000 |
| 2023 | The San Diego Foundation | GENERAL SUPPORT | $50,000 |
| 2023 | The San Francisco Foundation | ADVISED - FOR SUPPORT OF THE RIVERSTYX QUALITATIVE RESEARCH IN THE HOPKINS/NYU RELIGIOUS LEADER STUDY WITH PSILOCYBIN. | $10,000 |
| 2022 | Turnbull Family Foundation Inc | General Support | $115,084 |
| 2022 | National Philanthropic Trust | EDUCATION | $75,000 |
| 2021 | Turnbull Family Foundation Inc | General Support | $116,542 |
| 2020 | Hitchcock Margaret M Fdn | GENERAL OPERATING | $1,000 |
Frequently Asked Questions
Who funds Heffter Research Institute?
Heffter Research Institute is funded by 8 grantmakers, led by Turnbull Family Foundation Inc ($232K), National Philanthropic Trust ($225K), The San Diego Foundation ($100K). In total, IRS Form 990 filings record $654K in grants to Heffter Research Institute between 2020–2025.
Who is Heffter Research Institute's largest funder?
Turnbull Family Foundation Inc is the largest recorded funder of Heffter Research Institute, with $232K across 2 grants (2021–2022).
How much grant funding has Heffter Research Institute received?
IRS 990 filings record $654K in grants to Heffter Research Institute across 11 grants from 8 funders between 2020–2025. Filings are published on a delay, so recent grants may not appear yet.
Looking for funders like Heffter Research Institute's?
Grantable's AI matches your organization against 200,000+ grantmakers — including every funder on this page — using their real giving history.
You, clicking into all 8 funders
~56 min
at ~7 min per funder profile
Your agents, the same 8
under a minute
every profile evaluated and scored, with reasoning
Grant data is drawn from IRS Form 990 filings via Grantable's GrantGraph™. Filings are published on a delay; recent grants may not appear yet.
Looking for funders like Heffter Research Institute's?